Revision as of 11:58, 26 May 2011

acpi_call lets you send ACPI commands to turn your optimus nvidia card on or off (the actual commands to send will vary based on your laptop).

If you get and build the code from the link above, you can build and insert (insmod) the acpi_call module, but you will need to re-insert it after every reboot. In Ubuntu 11.04, you can try using dkms to make this module permanently available.

The AUTOINSTALL="yes" line in dkms.conf is supposed to tell dkms to automatically build and install the module if you upgrade the kernel, but if it doesn't work you can manually execute the dkms build and install commands in the new kernel.